Dust-suction apparatus.



No. 842,661. 7 PATENTED JAN. 29, 1907 A. HEIN. DUST SUCTION APPARATUS.

APPLIOATION FILED FEB. 21, 1906.

lNvENToR|- ADQLF 'HE\N. BY

ATTORNEY.

ing the bellows, a bifurcated pipe for coni ducting dusty an to the bellows-inlets, a pipe cated between the bellows and the nouth of said hag, substantially as described.

3. A dust-suction apparatus, eon'iprising suction-bellows having valved inlets and outlets, a crank-slmft and connections for working the bellows, uprights supporting said shaft, a hollow stand supporting the bellows and said uprights, a pipe for eendueting from the bellows-outlets t0 the interioref the hol- 10W stand, a filter-beg, through which the air passes prior to ese'aping te the atmosphere, and preliminary filtering means located be: tween the bellows and the mouth of the said hag, Substantially as described.

In Witness whereof I have hereunto signed my name, this 29th day of January, 1908, in

the presence of twe subscribing Witnesses.

1 ADCSLF BIN Witnesses VVQLDEMAR HAUPT, HENRY HAS ER. 

